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PATENTED AUG. 18, 1868.

E. J. ALLEN.

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Letters Patent No. 81,125, dat d Au ust 18, 1 868.

IMPROVEMENT IN scows.

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TO ALL WHOM IT MAY CONCERN:

- Be it known that I, ENocH J. ALLEN, of Rondout, in the county of Ulster, and State of New York, have invented a new and useful Improvement in the Construction of Scows; and- I do hereby declare that the following is a full, clear, andexact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

Figure 1 represents a. plan or top view of my improved scow.

Figure 2 is a vertical longitudinal section ofthe same, taken on the plane of the line a: w, fig.'1.-

Figure 3 is a horizontal section of the same, taken on the plane of the line y y, fig. 2.

Figure 4 is a vertical transverse section of the same, taken on the plane of the line z z, fig. 2.

Similar letters of reference indicate corresponding parts. I p

- This invention relates to a new manncrof constructing scows, with an object of strengthening the same, and consists First, in strengthening the fore-and-aft partitions by means of trestle-work.

Second, in arranging cross-keelsons above and at right angles to the fore-and-aft keelsons; and in the use of cross-beams on head of fore-and-aft keelsons, and parallel to the cross-keelsons. The fore-and-ai't partitions are not only made substantial by means of the trestle-work, but still more so by the cross-keelsons and beams.

The invention consists, third, in the employment and use of trestle-work or bracing, by which the cross keelsons and beams are not only connected, but by which the fore-and-aft divisions are connected and held apart.

The invention consists, fourth, in a new manner of constructing the lower grub, so that by it the fore-andaft keelsons and thecounter-timbcrs are fairly connected, and a good abutment made for the bottom and end plank. I By all these improvements, the scow made so strong and substantial that it will be capable of supporting heavier loads, and that it will remain useful for a longer period than any ordinary scow now made. b A, in the drawing, represents the outer case or shell of a scow. B B are the fore-and-aft keelsons arranged in the same. Their ends, as well as the lower endsof the counter-timbers O C, are let into the end grubs D D, which are groovedor mortised for their reception, and which project beyond the faces of the counter-timber and of the keelsons B, in such a manner that the bottom and end planks may abut against them, as is clearly indiacted in fig. 2. p v I By thus arranging the end grubs, the said timber as well as the planks is firmly held in po sition.

E E are the fore-and-aft beams, which, in conjunction with the keelsons B, serve to support the fore-andai't plank partitions F F, as usual.'

The keelsons B and the beams E are made so wide that they project beyond both sides of the plank partitions, as is clearly shown in figs. 3 and 4, to allow the arrangement on both sides of the partitions of trestle-work G, by which the beams and keelsons are braced, and the partitions supported and strengthened.

H H are cross-keelsons, arranged above or framed together with the keelsons B.

I I are cross-beams, framed together with the beams E, and above and parallel with the keelsons H.

Between the cross-beams and keelsons are arranged braces J J, as shown more particularly in fig. 4. These braces keep the partitions F apart, and strengthen the whole framework of the scow.

The cross-beams and keelsons are secured to the outer frame by means of knee-pieces aa,.or otherwise.

,I am aware that fore=and-aft divisions were already used on scows, but without trestle-work G. They were simply made of plank, and did not materially strengthen the whole structure.

Fore-and-aft keelsons have been used, but no cross-keelsons or beams have ever been employed in the manncr and for the purpose shown; neither were the transverse braces J ever employed.

I claim as new, and desire to secure lay-Letters. Patent-1 p i The combination of the cross-keelsons and beams H I, transverse trestle s J, and longitudinal trestlcs G; arranged, as described, in a scow,whereby the cross-keelsons support the transverse trestles, and the latter support the longitudinal trestles, as herein shown and described.

ENOCH J. ALLEN- Witnesses:

A. T. DOUGLAS, Josrnn Donors, Jr. 

